NUMA\uff08Non-Uniform Memory Access\uff09\u662f\u4e00\u79cd\u786c\u4ef6\u67b6\u6784\u8bbe\u8ba1\uff0c\u5b83\u53ef\u4ee5\u8ba9\u591a\u4e2aCPU\u8bbf\u95ee\u591a\u4e2a\u5185\u5b58\u533a\u57df\u3002\u5728NUMA\u67b6\u6784\u4e2d\uff0c\u6bcf\u4e2aCPU\u53ea\u80fd\u8bbf\u95ee\u5176\u672c\u5730\u8282\u70b9\uff08\u4e5f\u5c31\u662f\u81ea\u8eab\u6240\u5728\u7684\u5185\u5b58\u533a\u57df\uff09\uff0c\u800c\u8981\u8bbf\u95ee\u5176\u4ed6\u8282\u70b9\u7684\u5185\u5b58\uff0c\u5219\u9700\u8981\u901a\u8fc7\u7f51\u7edc\u6216\u5176\u4ed6\u9ad8\u901f\u901a\u9053\u8fdb\u884c\u8bbf\u95ee\u3002<\/p>\n
\u5bf9\u4e8e\u4e00\u4e9b\u9700\u8981\u5927\u91cf\u6570\u636e\u5904\u7406\u7684\u5e94\u7528\u7a0b\u5e8f\u6765\u8bf4\uff0cNUMA\u67b6\u6784\u53ef\u4ee5\u63d0\u9ad8\u7cfb\u7edf\u7684\u6574\u4f53\u6027\u80fd\u548c\u6548\u7387\u3002\u56e0\u6b64\uff0c\u5728\u4f7f\u7528Linux\u7cfb\u7edf\u65f6\uff0c\u5f00\u542fNUMA\u652f\u6301\u662f\u975e\u5e38\u6709\u5fc5\u8981\u7684\u3002<\/p>\n
\u672c\u6587\u5c06\u4ecb\u7ecd\u5982\u4f55\u5728Linux\u7cfb\u7edf\u4e2d\u5f00\u542fNUMA\u652f\u6301\uff0c\u5e76\u5bf9\u4e00\u4e9b\u5e38\u89c1\u95ee\u9898\u8fdb\u884c\u89e3\u7b54\u3002<\/p>\n
Step 1\uff1a\u68c0\u67e5NUMA\u652f\u6301<\/p>\n
\u5728\u5f00\u59cb\u4e4b\u524d\uff0c\u9700\u8981\u5148\u68c0\u67e5\u7cfb\u7edf\u662f\u5426\u652f\u6301NUMA\u3002\u5728Linux\u7cfb\u7edf\u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u547d\u4ee4\u68c0\u67e5NUMA\u652f\u6301\u60c5\u51b5\uff1a<\/p>\n
\u201c`bash<\/p>\n
lscpu | grep \u201cNUMA node(s)\u201d<\/p>\n
\u201c`<\/p>\n
\u5982\u679c\u7cfb\u7edf\u652f\u6301NUMA\uff0c\u5219\u4f1a\u8f93\u51fa\u7c7b\u4f3c\u4e0b\u9762\u7684\u7ed3\u679c\uff1a<\/p>\n
\u201c`<\/p>\n
NUMA node(s): 2<\/p>\n
NUMA node0 CPU(s): 0-7<\/p>\n
NUMA node1 CPU(s): 8-15<\/p>\n
\u201c`<\/p>\n
Step 2\uff1a\u5b89\u88c5NUMA\u5de5\u5177<\/p>\n
\u5728Linux\u7cfb\u7edf\u4e2d\uff0c\u9700\u8981\u5b89\u88c5numactl\u5de5\u5177\u6765\u7ba1\u7406NUMA\u3002\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u547d\u4ee4\u6765\u5b89\u88c5numactl\uff1a<\/p>\n
\u201c`bash<\/p>\n
sudo apt-get install numactl<\/p>\n
\u201c`<\/p>\n
Step 3\uff1a\u4f7f\u7528numactl\u547d\u4ee4<\/p>\n
\u5b89\u88c5\u5b8cnumactl\u5de5\u5177\u540e\uff0c\u5c31\u53ef\u4ee5\u4f7f\u7528numactl\u547d\u4ee4\u6765\u63a7\u5236NUMA\u8282\u70b9\u4e86\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u7528\u7684numactl\u547d\u4ee4\uff1a<\/p>\n
1. numactl \u2013hardware\uff1a\u663e\u793a\u7cfb\u7edf\u4e2d\u7684NUMA\u8282\u70b9\u548cCPU\u4fe1\u606f\u3002<\/p>\n
2. numactl \u2013show\uff1a\u663e\u793a\u5f53\u524d\u8fdb\u7a0b\u7684NUMA\u8282\u70b9\u548cCPU\u4fe1\u606f\u3002<\/p>\n
3. numactl \u2013cpunodebind=NODELIST command\uff1a\u5c06\u8fdb\u7a0b\u7ed1\u5b9a\u5230\u6307\u5b9a\u7684NUMA\u8282\u70b9\u3002<\/p>\n
4. numactl \u2013membind=NODELIST command\uff1a\u5c06\u8fdb\u7a0b\u7684\u5185\u5b58\u7ed1\u5b9a\u5230\u6307\u5b9a\u7684NUMA\u8282\u70b9\u3002<\/p>\n
Step 4\uff1a\u914d\u7f6eNUMA\u652f\u6301<\/p>\n
\u73b0\u5728\uff0c\u6211\u4eec\u6765\u770b\u770b\u5982\u4f55\u5f00\u542fLinux\u7cfb\u7edf\u7684NUMA\u652f\u6301\u3002<\/p>\n
1. \u7f16\u8f91\/etc\/default\/grub\u6587\u4ef6\uff0c\u5c06GRUB_CMDLINE_LINUX_DEFAULT\u884c\u4fee\u6539\u4e3a\uff1a<\/p>\n
\u201c`bash<\/p>\n
GRUB_CMDLINE_LINUX_DEFAULT=\u201dnuma=on\u201d<\/p>\n
\u201c`<\/p>\n
2. \u66f4\u65b0Grub\u914d\u7f6e\uff1a<\/p>\n
\u201c`bash<\/p>\n
sudo update-grub<\/p>\n
\u201c`<\/p>\n
3. \u91cd\u542f\u7cfb\u7edf\u4ee5\u5e94\u7528\u65b0\u7684Grub\u914d\u7f6e\uff1a<\/p>\n
\u201c`bash<\/p>\n
sudo reboot<\/p>\n
\u201c`<\/p>\n
\u5b8c\u6210\u4e0a\u8ff0\u6b65\u9aa4\u540e\uff0c\u7cfb\u7edf\u5c31\u4f1a\u5f00\u542fNUMA\u652f\u6301\u4e86\u3002<\/p>\n
Step 5\uff1a\u89e3\u51b3\u5e38\u89c1\u95ee\u9898<\/p>\n
1. \u5982\u4f55\u68c0\u67e5\u8fdb\u7a0b\u662f\u5426\u7ed1\u5b9a\u5230\u6307\u5b9a\u7684NUMA\u8282\u70b9\uff1f<\/p>\n
\u53ef\u4ee5\u4f7f\u7528numactl \u2013show\u547d\u4ee4\u6765\u67e5\u770b\u8fdb\u7a0b\u7684NUMA\u7ed1\u5b9a\u60c5\u51b5\u3002<\/p>\n
2. \u5982\u4f55\u907f\u514dNUMA\u9020\u6210\u7684\u6027\u80fd\u74f6\u9888\uff1f<\/p>\n
\u8981\u907f\u514dNUMA\u9020\u6210\u7684\u6027\u80fd\u74f6\u9888\uff0c\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u51e0\u79cd\u65b9\u5f0f\uff1a<\/p>\n
\u2013 \u7ed1\u5b9a\u8fdb\u7a0b\u5230\u6307\u5b9a\u7684NUMA\u8282\u70b9\u3002<\/p>\n
\u2013 \u5c06\u8fdb\u7a0b\u7684\u5185\u5b58\u5206\u5e03\u5728\u4e0d\u540c\u7684NUMA\u8282\u70b9\u4e0a\u3002<\/p>\n
\u2013 \u4f18\u5316\u8fdb\u7a0b\u7684\u8bbf\u95ee\u6a21\u5f0f\uff0c\u4f7f\u5176\u8bbf\u95ee\u672c\u5730NUMA\u8282\u70b9\u7684\u5185\u5b58\u3002<\/p>\n
3. \u5982\u4f55\u5728NUMA\u67b6\u6784\u4e0b\u4f7f\u7528\u5927\u9875\uff1f<\/p>\n
\u5728NUMA\u67b6\u6784\u4e0b\uff0c\u4f7f\u7528\u5927\u9875\uff08Huge Page\uff09\u53ef\u4ee5\u63d0\u9ad8\u6027\u80fd\u3002\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u547d\u4ee4\u6765\u5f00\u542f\u5927\u9875\u652f\u6301\uff1a<\/p>\n
\u201c`bash<\/p>\n
sysctl vm.nr_hugepages=NUM_PAGES<\/p>\n
\u201c`<\/p>\n
\u5176\u4e2dNUM_PAGES\u8868\u793a\u9700\u8981\u7684\u5927\u9875\u6570\u3002<\/p>\n
4. \u5982\u4f55\u68c0\u67e5NUMA\u7684\u5f00\u542f\u60c5\u51b5\uff1f<\/p>\n
\u53ef\u4ee5\u4f7f\u7528numactl \u2013hardware\u547d\u4ee4\u6765\u67e5\u770b\u7cfb\u7edf\u4e2d\u7684NUMA\u8282\u70b9\u548cCPU\u4fe1\u606f\u3002<\/p>\n
\uff1a<\/p>\n
NUMA\u67b6\u6784\u5728\u9700\u8981\u5927\u91cf\u6570\u636e\u5904\u7406\u7684\u5e94\u7528\u7a0b\u5e8f\u4e2d\u53ef\u4ee5\u63d0\u9ad8\u7cfb\u7edf\u7684\u6574\u4f53\u6027\u80fd\u548c\u6548\u7387\u3002\u5728Linux\u7cfb\u7edf\u4e2d\uff0c\u5f00\u542fNUMA\u652f\u6301\u975e\u5e38\u5bb9\u6613\uff0c\u53ea\u9700\u6309\u7167\u672c\u6587\u4e2d\u7684\u6b65\u9aa4\u64cd\u4f5c\u5373\u53ef\u3002\u5982\u679c\u9047\u5230\u95ee\u9898\uff0c\u53ef\u4ee5\u53c2\u8003\u672c\u6587\u4e2d\u7684\u5e38\u89c1\u95ee\u9898\u89e3\u7b54\u3002<\/p>\n
\u76f8\u5173\u95ee\u9898\u62d3\u5c55\u9605\u8bfb\uff1a<\/strong><\/p>\n \u5347\u7ea7linux\u5185\u6838\u594b\u6597\u8bb0<\/p>\n \u6211\u7684piii dell\u673a\u8fd0\u884c\u7740\u5185\u68382.4.\u7684redhat\uff0c\u81ea\u4ecelinux\u5185\u68382.6\u53d1\u5e03\u4ee5\u6765\u4e00\u76f4\u60f3\u628a\u8be5\u7cfb\u7edf\u5347\u7ea7\u5230\u5185\u68382.6\u3002\u7ecf\u8fc7\u4e00\u756a\u8270\u8f9b\u4e07\u82e6\uff0c\u7ec8\u4e8e\u6210\u529f\u4e86\u3002\u4e3a\u4e86\u4f53\u9a8c\u4e00\u4e0b\u5728linux\u4e0b\u7f16\u5199\u591a\u7ebf\u7a0b\u7a0b\u5e8f\u7684\u6b65\u9aa4\uff0c\u53c8\u66f4\u65b0gcc\u548cc\u8bed\u8a00\u5e93\u3002\u5728\u6b64\u613f\u548c\u5404\u4f4d\u670b\u53cb\u5171\u4eab\u8fd9\u6bb5\u7ecf\u5386\uff0c\u5171\u4eab\u8fd9\u6bb5\u6210\u679c\u3002\uff08\u53ef\u80fd\u6709\u8bb0\u5f55\u9519\u8bef\uff0c\u4ec5\u4f9b\u53c2\u8003\uff09\u3002 <\/p>\n \u5177\u4f53\u6b65\u9aa4\u5305\u62ec\u4ee5\u4e0b\u5185\u5bb9\uff1a <\/p>\n 1\uff0c\u5347\u7ea7\u5185\u6838\u7684\u5177\u4f53\u6b65\u9aa4 <\/p>\n 2\uff0c\u66f4\u65b0gcc <\/p>\n 3\uff0c\u4f7f\u7528glibc2.3.5 <\/p>\n 4\uff0c\u4f7f\u7528nptl\u7ebf\u7a0b\u8fdb\u884c\u7f16\u7a0b <\/p>\n \u5728\u6b64\u4e4b\u524d\uff0c\u5148\u7b80\u8981\u5730\u4ecb\u7ecd\u4e00\u4e0blinux\u5185\u68382.6\u6240\u505a\u7684\u6539\u8fdb\u53ca\u65b0\u589e\u529f\u80fd\u3002linux2.6\u4e3b\u8981\u5728\u4ee5\u4e0b\u768410\u4e2a\u65b9\u9762\u4f5c\u4e86\u5f88\u5927\u7684\u6539\u8fdb\uff0c\u7b80\u5355\u6982\u62ec\u5982\u4e0b\uff0c\u6709\u5173\u8be6\u7ec6\u60c5\u51b5\uff0c\u8bf7\u53c2\u9605\u76f8\u5173\u8d44\u6599\u3002 <\/p>\n 1\uff09\u901a\u8fc7\u6539\u5584\u5e76\u884c\u5904\u7406\u80fd\u529b\u548c\u91c7\u7528posix\u7ebf\u7a0b\u7b49\uff0c\u63d0\u9ad8\u4e86\u7cfb\u7edf\u7684\u5904\u7406\u80fd\u7f69\u4e8f\u4fe1\u529b\uff0c\u4ece\u800clinux\u771f\u6b63\u5177\u5907\u5927\u578b\u4fe1\u606f\u7cfb\u7edf\u6240\u8981\u6c42\u6027\u80fd\u3002 <\/p>\n 2\uff09\u901a\u8fc7\u6539\u5584\u6587\u4ef6\u7cfb\u7edf\u7684\u8f93\u51fa\/\u8f93\u5165\u80fd\u529b\u548c\u63d0\u9ad8\u5bf9\u5927\u5bb9\u91cf\u5185\u5b58\u7684\u5229\u7528\u6548\u7387\uff0c\u4f7f\u5f97linux\u80fd\u591f\u66f4\u80dc\u4efb\u5927\u578b\u4fe1\u606f\u7cfb\u7edf\u4e2d\u7684\u6570\u636e\u5904\u7406\u3002 <\/p>\n 3\uff09\u52a0\u5f3a\u4e86\u5bf9\u6570\u7269\u8f6e\u636e\u5e93\u5e94\u7528\u7a0b\u5e8f\u7684\u652f\u6301\u3002 <\/p>\n 4\uff09\u63d0\u9ad8\u4e86\u6297\u7cfb\u7edf\u9ad8\u8d1f\u8377\u65f6\u80fd\u529b\u3002 <\/p>\n 5\uff09\u63d0\u9ad8\u4e86\u7cfb\u7edf\u7684\u53ef\u7528\u6027\uff0c\u5305\u62ec\u5bf9\u4e0d\u505c\u673a\u7a7a\u6b64\u65f6\u5907\u4efd\u548c\u4e0d\u505c\u673a\u65f6\u66f4\u6362\u786c\u4ef6\u529f\u80fd\u7684\u652f\u6301\u3002 <\/p>\n 6\uff09\u5f3a\u5316\u4e86\u5bf9\u7f51\u7edc\u7684\u652f\u6301\uff0c\u589e\u52a0\u4e86\u5bf9ipv6, sctp, ipsec\uff0c\u7b49\u7684\u652f\u6301\u3002 <\/p>\n 7\uff09\u901a\u8fc7\u589e\u52a0\u8bbf\u95ee\u63a7\u5236\u548c\u5185\u6838\u6697\u53f7\u5316\u6280\u672f\uff0c\u63d0\u9ad8\u4e86\u7cfb\u7edf\u7684\u5b89\u5168\u6027\u3002 <\/p>\n 8\uff09\u5f3a\u5316\u4e86\u5bf9\u7535\u6e90\u7684\u7ba1\u7406\u3002 <\/p>\n 9\uff09\u5f3a\u5316\u4e86\u5bf9\u5d4c\u5165\u5f0fcpu\u548c\u7cfb\u7edf\u7684\u652f\u6301\u3002 <\/p>\n 10\uff09\u6dfb\u52a0\u4e86\u66f4\u591a\u7684\u786c\u4ef6\u9a71\u52a8\u7a0b\u5e8f\u3002 <\/p>\n<\/p>\n \u4e00.\u5347\u7ea7\u5185\u6838 <\/p>\n<\/p>\n 1, \u4e0b\u8f7dlinux-2.6.3.tar.bz2\uff08\u53ef\u4ee5\u662f\u66f4\u65b0\u7684\u7248\u672c\uff09\u5230\/usr\/src <\/p>\n<\/p>\n bzcat linux-2.6.3.tar.bz2 | tar xvf \u2013 cd linux-2.6.\u9605\u8bfbreadme\u53cachanges \u6587\u4ef6\uff0c\u786e\u8ba4\u5fc5\u987b\u7684\u5de5\u5177\u8f6f\u4ef6\u3002\u56e0\u4e3a\u4e0d\u662f\u7b14\u8bb0\u672c\u7535\u8111\u548c\u7b14\u8bb0\u672c\u7535\u8111\u6709\u5173\u7684\u8f6f\u4ef6\u53ef\u4ee5\u5ffd\u7565\u3002\u53d1\u73b0module-init-tools\u9700\u8981\u66f4\u65b0\u3002 <\/p>\n 2\uff0c\u4e0b\u8f7dmodule-init-tools-0.9.13.tar.bz2 <\/p>\n<\/p>\n bzcat module-init-tools-0.9.13.tar.bz2 | tar xvf \u2013 cd module-init-tools-0.9.13 .\/configure \u2013prefix=\/usr\/local\/module-init make make moveold make install \/usr\/local\/module-init\/in\/generate-modpobe.conf > \/etc\/modprobe.conf\u6210\u529f\u3002 <\/p>\n 3, \u7f16\u8bd1linux\u5185\u6838 <\/p>\n<\/p>\n cd \/usr\/src\/linux-2.6.3 make menuconfig\u4e00\u770b\u592a\u9ebb\u70e6\u4e86\uff0c\u800c\u4e14\u8bb8\u591a\u9009\u9879\u4e0d\u77e5\u6240\u4e91\u3002\u9000\u51fa\u8be5\u7a0b\u5e8f\u3002 \u6267\u884cmake oldconfig\uff0c\u5bf9kernel2.6\u65b0\u589e\u7684\u4e0d\u719f\u6089\u7684\u9009\u9879\u4f5c\u4e0d\u9009\u6216\u4e3a\u7f3a\u7701\u3002 <\/p>\n<\/p>\n make bzimage make modules modules_install pwd \/usr\/src\/linux-2.6.3 mv arch\/i386\/boot\/bzimage \/boot\/bzimage2.6.3 mv system.map \/boot\/system.map-2.6.3 cd \/boot mv system.map oldsystem.map ln \u2013s system.map-2.6.3 system.map\uff0c\u5efa\u7acbsys\u76ee\u5f55 <\/p>\n mkdir \/sys <\/p>\n 5, \u4fee\u6539\u76f8\u5173\u6587\u4ef6\uff0c\u589e\u52a0\u5bf9sys\u7684\u652f\u6301 <\/p>\n \u5728\/etc\/rc.d\/rc.sysinit\u6587\u4ef6\u589e\u52a0\u5bf9sys\u7684\u652f\u6301\u3002 <\/p>\n 1) \u627e\u5230mount \u2013f \/proc\u7684\u884c\uff0c\u5728\u5176\u4e0b\u9762\uff0c\u589e\u52a0 mount \u2013f \/sys <\/p>\n 2) \u627e\u5230 action $ \u201cmounting proc filesystem:\u201d mount \u2013n \u2013t proc \/proc \/proc \u5728\u5176\u4e0b\u9762\uff0c\u589e\u52a0action $ \u201cmounting sysfs filesystem:\u201d mount \u2013n \u2013t sysfs \/sys \/sys. <\/p>\n 3) \u628a\u6587\u4ef6\u4e2d\u7684 ksyms \u6539\u6210 kallsyms <\/p>\n \u5728\/etc\/fstab\u6587\u4ef6\u4e2d\uff0c\u589e\u52a0\u4e00\u884c: <\/p>\n none \/sys sysfs defaults 0 0 <\/p>\n \u5728\/etc\/rc.d\/init.d\/halt\u4e2d\uff0c\u589e\u52a0\u5bf9sys\u7684\u652f\u6301,\u628a awk \u2018$2 ~\/^\/$ | ^\/proc | ^\/dev \/ {next} \u53d8\u4e3a: <\/p>\n awk \u2018$2 ~\/^\/$ | ^\/proc | ^\/sys | ^\/dev \/ {next} <\/p>\n 6\uff0c\u542f\u52a8 <\/p>\n \u4fee\u6539\/etc\/lilo.conf, \u589e\u52a0\u4e0b\u9762\u7684\u8bbe\u7f6e <\/p>\n<\/p>\n \u2026 image=\/boot\/bzimange2.6.3 label=linux2.6.3 read-only root=\/dev\/hda3(\u7531\u81ea\u5df1\u7684pc\u8bbe\u7f6e\u51b3\u5b9a)\u6210\u529f\u3002<\/p>\n<\/p>\n \u4e8c\uff0c\u66f4\u65b0gcc (\u56e0\u4e3agcc2.95.3\u65e0\u6cd5\u7f16\u8bd1glibc-2.3.5) <\/p>\n<\/p>\n \u4e0b\u8f7dgcc-3.4.4.tar.bz2 <\/p>\n<\/p>\n bzcat gcc-3.4.4.tar.bz2 | tar xvf \u2013 cd gcc-3.4.4 .\/configure \u2013prefix=\/usr\/local\/gcc344 \u2013enable-shared \u2013enable-threads \u2013enable-threads=posix \u2013enable-languages=c,c++,f77 make bootstrap (\u56e0\u4e3a\u4f7f\u7528cflags\u9009\u9879\u65f6\uff0c\u51fa\u9519\u4e86\uff0c\u6240\u4ee5\u7701\u7565) make install ln \u2013s \/usr\/local\/gcc344\/bin\/gcc \/usr\/bin\/gcc<\/p>\n \u4e09\uff0c\u4f7f\u7528glibc-2.3.5 <\/p>\n<\/p>\n 1\uff09\u3001\u901a\u8fc7\u8c03\u67e5\u53d1\u73b0\u8981\u7f16\u8bd1glibc-2.3.5\uff0c\u8981\u6c42binutils\u57282.13\u4ee5\u4e0a\u3002\u6240\u4ee5\u5fc5\u987b\u5b89inutils-2.14 <\/p>\n \u4e0b\u8f7dbinutils-2.14.tar.gz <\/p>\n<\/p>\n tar zxpvf binutils-2.14.tar.gz mkdir binutils-build cd binutils-build ..\/binutils-2.14\/configure \u2013prefix=\/usr \u2013enable-shared make tooldir=\/usr make check make tooldir=\/usr install cp ..\/binutils-2.14\/include\/libiberty.h \/usr\/include) \u5b89\u88c5glibc-2.3.5 <\/p>\n \u4e0b\u8f7d glibc-2.3.5.tar.gz \u548c glibc-2.3.5-fix_test-1.patch <\/p>\n<\/p>\n tar zxpvf glibc-2.3.5.tar.gz patch \u2013np1 \u2013i ..\/glibc-2.3.5-fix_test-1.path mkdir glibc-build cd glibc-build ..\/glibc-2.3.5\/configure \u2013prefix=\/usr\/local\/glibc235 \u2013enable-add-ons=linuxthreads \u2013enable-kernel=2.6.0 (\u82e5\u5b89\u88c5\u5728\/usr\u76ee\u5f55\u4e0b\uff0c\u5f88\u5371\u9669\uff0c\u53ef\u80fd\u4f1a\u635f\u574f\u4f60\u7684\u7cfb\u7edf) make make check (\u5fc5\u987b\u6267\u884c\u7684\u4e00\u6b65) make localedata \/install-locales (\u5bf9\u5e94\u5404\u56fd\u6587\u5b57) mkdir \/usr\/man\/man3(man\u7684\u5b89\u88c5\u8def\u5f84) make \u2013c ..\/glibc-2.3.5\/linuxthreads\/man install\u4e0a\u9762\u7684\u5b89\u88c5\u5b8c\u6210\u4ee5\u540e\uff0c\u66f4\u597d\u628a\/usr\/local\/glibc235\/lib\u548c\/usr\/local\/glibc235\/include\u52a0\u5165\u5230\u7cfb\u7edf\u7684\u8def\u5f84\u4e2d\uff0c\u8fd9\u6837\u5728\u7f16\u8bd1\u7a0b\u5e8f\u65f6\uff0c\u5c31\u4e0d\u5fc5\u6307\u5b9a\u5e93\u548cheader\u6587\u4ef6\u7684\u8def\u5f84\u4e86\u3002 <\/p>\n<\/p>\n \u56db\u3001\u4f7f\u7528nptl\u8fdb\u884c\u7ebf\u7a0b\u7f16\u7a0b <\/p>\n<\/p>\n #include #include #include #include void thread_fun(void * arg); char message = \u201ci am created thread\u201d; int main() { int rnt; pthread_t new_thread; void *thread_result; rnt=pthread_create(&new_thread,null, thread_fun, (void*) message); if (rnt != 0) { perrer (\u201cthread creation failed\u201d); exit(exit_failure); } printf(\u201cwaiting for other thread to finish\u2026\u201d); rnt = pthread_join(new_thread, &thread_result); if (rnt != 0) { perrer (\u201cthread join failed\u201d); exit(exit_failure); } printf(\u201cthread join, it returned %s \u201d, (char*) thread_result); printf(\u201cmessage now %s\u201d, message); exit(exit_success); } void *thread_fun (void * arg) { printf(\u201cthe new thread is running. argument was %s\u201d,(char*)arg); sleep(3); strcpy(message, \u201cbye\u201d); pthread_exit(\u201cthank you for the test\u201d); }\u7f16\u8bd1 <\/p>\n<\/p>\n gcc -d_reentrant test_thread.c -o test_thread -lpthread .\/test_thread\u6210\u529f\u4e86\u3002<\/p>\n \u5728ARM Linux\u5185\u6838\u4e2d\u4f7f\u7528\u786c\u4ef6\u65ad\u70b9<\/p>\n \u4e00\u822c\u7684CPU\u90fd\u652f\u6301\u786c\u4ef6\u65ad\u70b9\uff0c\u4e5f\u5c31\u662f\u901a\u8fc7\u5904\u7406\u5668\u63d0\u4f9b\u4e13\u95e8\u65ad\u70b9\u5bc4\u5b58\u5668\u4fdd\u5b58\u4e00\u4e2a\u5730\u5740\uff0c\u5904\u7406\u5668\u5728\u6267\u884c\u7a0b\u5e8f\u8fc7\u7a0b\uff0c\u4f1a\u4e0d\u65ad\u53bb\u5339\u914d\uff0c\u53ef\u4ee5\u8bbe\u7f6e\u6210\u4e0d\u540c\u7684\u6a21\u5f0f\u8fc5\u78a7\u6765\u89e6\u53d1\u7a0b\u5e8f\u4e2d\u65ad\uff0c\u5982\u6267\u884c\u5230\u8fd9\u4e2a\u5730\u5740\uff0c\u8bfb\u8fd9\u4e2a\u5730\u5740\u6216\u5199\u8fd9\u4e2a\u5730\u5740\uff0c \u5e76\u4e14\u53ef\u4ee5\u8bbe\u7f6e\u957f\u5ea6\uff0c\u63098\u4f4d\uff0c16\u4f4d\uff0c\u621632\u4f4d\u6765\u89e6\u53d1\u3002\u548c\u8f6f\u4ef6\u65ad\u70b9\u6bd4\uff0c\u597d\u5904\u662f\u53ef\u4ee5\u56e2\u6fc0\u652f\u6301\u8bfb\u5199\u65ad\u70b9\uff0c\u7a0b\u5e8f\u65ad\u70b9\u4e0d\u9700\u8981\u6539\u5199\u5185\u5b58\uff0c\u53ef\u4ee5\u8bbe\u5728ROM\u4e2d\uff0c\u5728\u865a\u62df\u5730\u5740\u6620\u5c04\u524d\u4e5f\u53ef\u8bbe\u7f6e\u7b49\u7b49\u3002 <\/p>\n X86, ARMv5\u67b6\u6784\u4ee5\u4e0a\u90fd\u53ef\u4ee5\u652f\u6301\u786c\u4ef6\u65ad\u70b9\uff0c\u5982\u662fARM9\u4e0a\u53ef\u4ee5\u652f\u63012\u4e2a\uff0c\u6700\u65b0ARMv8\u89c4\u8303\u6307\u5b9a2-8\u4e2a\u3002 <\/p>\n \u9664\u4e86Jtag\u8c03\u8bd5\u5668\u53ef\u4ee5\u652f\u6301\u786c\u4ef6\u65ad\u70b9\uff0c\u5728Linux\u5185\u6838\u4e2d\uff0c\u4e5f\u53ef\u4ee5\u652f\u6301\u786c\u4ef6\u65ad\u70b9\u3002 <\/p>\n \u76f8\u5173\u7684\u914d\u7f6e CONFIG_HAVE_HW_BREAKPOIN <\/p>\n \u4e0b\u9762\u4ee53.18 Android\u5185\u6838\u4e0a\u7684ARM64\u4e3a\u4f8b\uff0c\u5217\u4e3e\u5177\u4f53\u6b65\u9aa4\uff1a<\/p>\n \u57283.18\u4e0a\uff0c\u8fd9\u4e2a\u914d\u7f6e\u6ca1\u6709\u5199\u5165\u4ea9\u6216\u4e3emenuconfig,\u6240\u4ee5\u9996\u5148\u4fee\u6539Kconfig <\/p>\n kernel\/arch\/arm64\/Kconfig.debug,\u52a0\u5165<\/p>\n config HAVE_HW_BREAKPOINT<\/p>\n bool \u201cHardware Breakpoint support\u201d<\/p>\n default y<\/p>\n help<\/p>\n If this option is hardware breakpoint<\/p>\n If in doubt, say N.<\/p>\n 2.\u7136\u540e\u5728\u5df2\u7f16\u8bd1\u8fc7\u7684Android\u6839\u76ee\u5f55\u73af\u5883\u4e0b\uff1a<\/p>\n make -C kernel O=..\/out\/target\/product\/\/obj\/KERNEL_OBJ ARCH=arm64 CROSS_COMPILE=aarch64-linux-android- KCFLAGS=-mno-android -j8 menuconfig 11<\/p>\n \u5728\u201dKernel hacking\u201d\u83dc\u5355\u4e0b\u53ef\u4ee5\u627e\u5230\u8fd9\u4e00\u9009\u9879\uff0c\u540c\u65f6\u8fd8\u8981\u628a<\/p>\n Sample kernel code\/Build kernel hardware breakpoint examples \u2014 loadable module only11<\/p>\n \u9009\u4e0a\u3002<\/p>\n \u56e0\u4e3a\u76ee\u524d\u5b89\u5353\u5185\u6838\u90fd\u5df2\u7ecf\u628a\u6a21\u5757\u7b7e\u540d\u6253\u5f00\uff0c \u4e3a\u4e86\u65b9\u4fbf\u8c03\u8bd5\uff0c\u53ef\u80fd\u6682\u65f6\u5173\u6389\uff1a<\/p>\n Main Menu\/Enable loadable module support \u2013 Require modules to be validly signed11<\/p>\n 3.\u7136\u540e\u91cd\u7f16\u5185\u6838\u548cbootimage,\u540c\u8fdb\u628asamples module:data_breakpoint.ko\u4e5f\u7f16\u51fa\u6765<\/p>\n make -C kernel O=..\/out\/target\/product\/\/obj\/KERNEL_OBJ ARCH=arm64 CROSS_COMPILE=aarch64-linux-android- KCFLAGS=-mno-android -j8 m=samples11<\/p>\n \u628a\u751f\u6210\u7684bootimage\u91cd\u65b0\u70e7\u5165\u624b\u673a\uff0c\u5e76\u4e14\u628adata_breakpoint.ko\u4e5f\u63a8\u9001\u5165<\/p>\n adb push \/out\/target\/product\/\/obj\/KERNEL_OBJ\/samples\/hw_breakpoint\/data_breakpoint.ko \/data\/test11<\/p>\n 4.\u63a5\u4e0b\u6765\u5c31\u53ef\u4ee5\u4f7f\u7528\u4e86\uff0c\u7528\u6cd5\u662f\u63d2\u5165data_breakpoint.ko\u6a21\u5757\uff0c\u7528\u7b26\u53f7\u4f5c\u53c2\u6570 <\/p>\n \u5982\uff1a <\/p>\n inod hw_breakpoint.ko ksym=totalram_pages <\/p>\n totalram_pages\u53d8\u91cf\u662f\u5185\u5b58\u603b\u7684\u9875\u5927\u5c0f\uff0c\u5728cat \/proc\/meminfo\u65f6\u4f1a\u8bfb\u5b83 <\/p>\n \u8fd9\u65f6\u5c31\u4f1a\u89e6\u53d1\u786c\u4ef6\u65ad\u70b9\uff0c\u5185\u6838\u4f1a\u6253\u5370\u4e2d\u6574\u4e2a\u8c03\u7528\u6808\u3002<\/p>\n 5.data_breakpoint.ko\u4e2d\uff0c\u7f3a\u7701\u662f\u8bfb\u5199\u65ad\u70b9\uff0c\u53ef\u4ee5\u5728\u8fd9\u4e2asample code\u7684\u57fa\u7840\u4e0a\uff0c\u7ee7\u7eed\u589e\u5f3a\uff0c\u901a\u8fc7\u4e0d\u540c\u7684\u53c2\u6570\u5728\u4f7f\u80fd\u53ea\u8bfb\u65ad\u70b9\u6216\u53ea\u5199\u65ad\u70b9\uff0c\u5305\u62ec\u957f\u5ea6\u3002 <\/p>\n \u4ee3\u7801\u4f4d\u4e8e\u5185\u6838\u4e2dsamples\/hw_breakpoint\/data_breakpoint.c <\/p>\n \u901a\u8fc7HW_BREAKPOINT_W\u548cHW_BREAKPOINT_R\u6765\u8bbe\u7f6e<\/p>\n static int __init hw_break_module_init(void)<\/p>\n {<\/p>\n int ret;<\/p>\n struct perf_event_attr attr;<\/p>\n hw_breakpoint_init(&attr);<\/p>\n attr.bp_addr = kallsyms_lookup_name(ksym_name);<\/p>\n attr.bp_len = HW_BREAKPOINT_LEN_4;<\/p>\n attr.bp_type = HW_BREAKPOINT_W | HW_BREAKPOINT_R;<\/p>\n linux numa enable\u7684\u4ecb\u7ecd\u5c31\u804a\u5230\u8fd9\u91cc\u5427\uff0c\u611f\u8c22\u4f60\u82b1\u65f6\u95f4\u9605\u8bfb\u672c\u7ad9\u5185\u5bb9\uff0c\u66f4\u591a\u5173\u4e8elinux numa enable,\u5982\u4f55\u5f00\u542fLinux NUMA\u652f\u6301\uff1f,\u5347\u7ea7Linux\u64cd\u4f5c\u7cfb\u7edf\u5185\u6838\u594b\u6597\u8bb0,\u5982\u4f55\u5728ARM Linux\u5185\u6838\u4e2d\u4f7f\u7528\u786c\u4ef6\u65ad\u70b9\u7684\u4fe1\u606f\u522b\u5fd8\u4e86\u5728\u672c\u7ad9\u8fdb\u884c\u67e5\u627e\u5594\u3002<\/p>\n\n
\u5347\u7ea7Linux\u64cd\u4f5c\u7cfb\u7edf\u5185\u6838\u594b\u6597\u8bb0<\/h3>\n
\u5982\u4f55\u5728ARM Linux\u5185\u6838\u4e2d\u4f7f\u7528\u786c\u4ef6\u65ad\u70b9<\/h3>\n